Verb Test 48

In Subject-Verb Agreement, a verb must agree with its subject in number and in person.

Firstly, we need to identify the tense. Since the sentence states 'alive now,' we know we must use the present tense. This eliminates options C and D. In this sentence, there are two subjects: father and mother. So ideally, the verb should be plural. But when we use 'neither...nor' in a sentence which has singular subjects (father and mother), we must use the singular verb (is). Hence, the correct option is A) is.

Here, the singular word is 'saga' and the plural word is 'institutions'. Let's not get distracted by the phrase 'of the educational institutions' as it is just a distractor (prepositional phrase). From the sentence given, the subject is the 'saga' of the educational institutions and so the verb to be used should agree with our singular subject 'saga'. In the given sentence, there's an error and that is in the usage of are, which is plural, whereas we need a singular verb that can be used in the present continuous tense. Hence, the correct answer is option A).
Option B) is incorrect because using 'has' in the place of 'are' makes the sentence grammatically incorrect since the sentence is in the present continuous tense.
Option D) would not create a grammatically correct sentence since the sentence is in the present continuous tense and a future tense verb won't work in this context.
Option C) does not pick out the error in the given statement as institutions and institution (singular and plural nature of the word) would not correct the sentence in any way. 

When we first look at the given sentence, we see that there are two subjects in this sentence: 'taking pay' and 'not working.' So, we would accept a plural verb, right? However, in this case, the two subjects form a compound subject that is generally taken as a singular subject as we are referring to one complete idea of taking pay and not working. Therefore, we need a singular verb to agree with our singular subject. Hence, the correct answer is B) is. Options A) and C) are plural verbs and so they are wrong. Option D) aren't would not form a grammatically correct sentence and would even be contextually incorrect.

When a sentence uses 'or', we take the items mentioned as singular and when it uses 'and' we consider the items together and use a plural verb. So, options A) and D) can be eliminated. While making a general statement, we always use the simple present tense. So, option C) was is also incorrect and the correct answer is option B) is. In the given sentence, two singular subjects (Man's happiness and misery) are joined by 'or' and according to the subject-verb-agreement rule, we must use a singular verb and since the given statement is a general statement or a fact of life, we would need the verb to be in the present tense. That leaves us with the correct option: is.

Out of the four options, option B is correct. In the case of collective noun, verb can be singular or plural depending on the meaning of the sentence. Here, all the members is the collective noun and acting as individuals. Thus, plural verb 'are' is used. 'Is' and 'was' takes singular subject. Thus, options A, C and D are wrong. 

The answer here is 'Have' - making Option A) the correct answer. This is because the noun 'police' is always treated as a collective noun, and thus the plural form of the verb i.e 'Have' must be used and not singular forms like is, or has; and were is incorrect in terms of tense. All other answers are inappropriate.

In this sentence we would be understanding the usage of subject-verb concord. With collective nouns such as group, jury, family, audience, population, the verb might be singular or plural, depending on the writer's intent.

The correct option is B. The rule is when one of the nouns connected by 'or' or 'nor' is plural then the verb must be plural and the plural subject should be placed next to the verb. Here, 'Surendra' is singular subject and 'his friends' is plural subject thus 'have been' is used which is plural verb. Hence, 'Have been' is the best fit according to the rule.